KA2223 5band graphic eq amp introduction 16-dip-300a the KA2223 is a monolithic integrated circuit consisting of an operational amplifier with five resonant circuits and a active filter, and it is suitable for radio-cassette tape recorder, car stereo or music center audio systems. features tone control with independent adjustment of each band through an external capacitor. gain control through an external variable resistor. increasing the bands by adding resonant circuit or using two KA2223 in series. low noise (v no = 7 m v: typ. flat). low distortion (thd = 0.02% typ. f = lkhz flat). large input allowance (v i = 2.3v: typ, v cc = 9v, f =1khz flat). operating supply voltage range: v cc = 5v ~ 13v ordering information block diagram fig. 1 device package operating temperature KA2223 16-dip-300a -20 c ~ +70 c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 base1 nf1 base2 nf2 base3 nf3 base4 nf4 gnd bias vcc output nf input nf5 base5 68k 5.1k 1.2k 68k 5.1k 1.2k 68k 5.1k 1.2k 68k 5.1k 1.2k 68k 5.1k _ + 12k 10k 4.7k 47k r 2 12k
KA2223 5band graphic eq amp absolute maximum ratings electrical characteristics (ta = 25 c, v cc = 9v unless otherwise specified) test f(hz) conditions quiescent circuit current i ccq v i = 0 3.0 5.2 8.0 ma flat g v (flat) 1k v i = -10dbm -3.8 -0.8 2.2 db 108 343 boost g v (boost) 1.08k v i = - 10dbm 8 10.5 12 db 3.43k voltage gain 10.8k 108 343 cut g v (cut) 1.08k v i = - 10dbm -12 -10.5 -8 db 3.43k 10.8k total harmonic distortion thd 1k v i = 1v 0.02 0.1 % output noise voltage v no flat, input short bw(-3db) = 10hz ~ 30khz 7.0 30 m v characteristic symbol value unit supply voltage power dissipation operating temperature storage temperature v cc p d t opr t stg 20 700 -20 ~ +70 -55 ~ + 125 v mw c c characteristic symbol min typ max unit
KA2223 5band graphic eq amp test circuit fig. 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 KA2223 0.039u 0.68u c 1 c 2 0.012u 0.22u 0.0039u 0.068u 0.0012u 0.022u 0.012u 0.22u vcc 22u 3.3u 1000p output 10k input 4.7k 3.3u 108hz 343hz 1.08khz 3.43khz 10.8khz 100kx5 47u resonant frequency f 0 = 1 2e r 1 r 2 r 1 r 2 (r 1 = 1.2k, r 2 = 68k on-chip resistor)
KA2223 5band graphic eq amp application circuit 1. 7 band fig. 3 2. 10 band fig. 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 KA2223 0.012u 0.22u 0.0039u 0.068u 0.0012u 0.022u 390p 6800p 220p 5600p vcc 22u 3.3u 1000p output 10k input 4.7k 108hz 343hz 1.08khz 3.43khz 10.8khz 100kx7 47u 0.039u 0.68u 0.12u 1.2u c 2 c 1 3.3u 15.87khz 48hz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 KA2223 0 . 0 0 3 9 u 0.068u 0 . 0 0 1 2 u 0.068u 1 0 0 0 p 8200p 3 9 0 p 6800p 2 2 0 p 5600p 22u 3.3u 1000p output 10k 1.08khz 3.43khz 6.15khz 10.8khz 15.87khz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 KA2223 0 . 1 2 u 1.2u 0 . 1 u 0.82u 0 . 0 2 2 u 0.56u 0 . 0 1 2 u 0.22u 0 . 0 1 u 0.082u vcc input 4.7k 46hz 61.5hz 168.7hz 343hz 47u 3.3u 615hz 100kx10
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